Jam-proof device of slot-in optical disk drive

Abstract

The invention provides a jam-proof device of a slot-in optical disk drive. In the jam-proof device, a contact pin protrudes from one end of the loading bar, the other end of the loading bar is pivoted with a pivot on a first side of the casing, and a block protrudes adjacent to the pivot. One end of the unloading bar is pivoted on a second side of the casing opposite to the first side, and a reception end is formed at the other end of the unloading bar to extend to a center of the casing. A distance between the block and the reception end at a default position is shorter than a diameter of an 8-cm disc to prevent the disc from entering the slot-in optical disk drive.

What is claimed is: 
     
         1 . A jam-proof device of a slot-in optical disk drive disposed in a casing of the slot-in optical disk drive, the jam-proof device comprising:
 a loading bar having two ends, wherein a contact pin protrudes from one end of the loading bar, the other end of the loading bar is pivoted with a pivot on a first side of the casing, and a block protrudes adjacent to the pivot; and   an unloading bar having two ends, wherein one end of the unloading bar is pivoted on a second side of the casing opposite to the first side, and a reception end is formed at the other end of the unloading bar to extend to a center of the casing;   wherein a distance between the block and the reception end at a default position is shorter than a diameter of an 8-cm disc.   
     
     
         2 . A jam-proof device of a slot-in optical disk drive according to  claim 1 , wherein the block is formed integrally on the loading bar. 
     
     
         3 . A jam-proof device of a slot-in optical disk drive according to  claim 1 , wherein the pivot is positioned between the contact pin and the block. 
     
     
         4 . A jam-proof device of a slot-in optical disk drive according to  claim 3 , wherein the block is a position-variable block moving away from or close to the first side of the casing in response to rotation of the loading bar. 
     
     
         5 . A jam-proof device of a slot-in optical disk drive according to  claim 4 , wherein the distance between the position-variable block and the reception end at the default position is maintained shorter than the diameter of the 8-cm disc when the position-variable block is moving. 
     
     
         6 . A jam-proof device of a slot-in optical disk drive according to  claim 4 , wherein the position-variable block moves toward the first side of the casing when the one end of the loading bar with the contact pin tilts, and the position-variable block moves away from the first side of the casing when the loading bar moves toward the first side of the casing. 
     
     
         7 . A jam-proof device of a slot-in optical disk drive according to  claim 4 , wherein the position-variable block allows a 12-cm disc to enter and exit the slot-in optical disk drive in a process of moving toward or away from the first side of the casing. 
     
     
         8 . A jam-proof device of a slot-in optical disk drive according to  claim 1 , wherein the block is positioned at the pivot. 
     
     
         9 . A jam-proof device of a slot-in optical disk drive according to  claim 1 , wherein the block is positioned at the pivot adjacent to the first side of the casing.